Cleanup: Fix clang-tidy warnings: [modernize-deprecated-headers]

source/blender/render/intern/engine.cc

@@ -5,9 +5,9 @@
  * \ingroup render
  */
 
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cstddef>
+#include <cstdlib>
+#include <cstring>
 
 #include "MEM_guardedalloc.h"
 

source/blender/render/intern/initrender.cc

@@ -7,10 +7,10 @@
 
 /* Global includes */
 
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cmath>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
 
 #include "MEM_guardedalloc.h"
 

source/blender/render/intern/pipeline.cc

@@ -5,12 +5,12 @@
  * \ingroup render
  */
 
-#include <errno.h>
-#include <limits.h>
-#include <math.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cerrno>
+#include <climits>
+#include <cmath>
+#include <cstddef>
+#include <cstdlib>
+#include <cstring>
 
 #include "DNA_anim_types.h"
 #include "DNA_collection_types.h"

source/blender/render/intern/render_result.cc

@@ -5,10 +5,10 @@
  * \ingroup render
  */
 
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
 
 #include "MEM_guardedalloc.h"